diff --git a/database-service/src/characters.rs b/database-service/src/characters.rs
index a03df49..c7b72b6 100644
--- a/database-service/src/characters.rs
+++ b/database-service/src/characters.rs
@@ -110,7 +110,7 @@ impl CharacterRepository {
         let result = sqlx::query(query).bind(character_id).fetch_one(&self.pool).await?;
 
         // Invalidate cache
-        let cache_key = format!("character:user:{}", result.get::<i32, &str>("user_id"));
+        let cache_key = format!("character:user:{}", result.get::<&str, &str>("user_id"));
         self.cache
             .lock()
             .await